/* ==================== CSS 变量 ==================== */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #22d3ee;
    --accent: #f43f5e;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #334155;
    --success: #10b981;
    --warning: #f59e0b;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
}

/* ==================== 全局重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ==================== 容器 ==================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    color: var(--primary);
}

.logo-cn {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: 0.875rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.nav-link.active {
    color: var(--primary);
    background: rgba(99, 102, 241, 0.15);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* ==================== 移动端菜单 ==================== */
.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    z-index: 999;
}

.mobile-menu.show {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    color: var(--text-secondary);
}

.mobile-menu a:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

/* ==================== 英雄区 ==================== */
.hero {
    padding: 8rem 0 4rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.hero-title .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* 代码窗口 */
.hero-visual {
    position: relative;
}

.code-window {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-card-hover);
    border-bottom: 1px solid var(--border);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot.red { background: #ef4444; }
.code-dot.yellow { background: #eab308; }
.code-dot.green { background: #22c55e; }

.code-title {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.code-content {
    padding: 1.5rem;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-content .comment {
    color: var(--text-muted);
}

.code-content .success {
    color: var(--success);
}

/* ==================== 通用区块 ==================== */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 100px;
    font-size: 0.8125rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== 特性卡片 ==================== */
.features-preview {
    background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.05) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* ==================== 步骤 ==================== */
.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    flex: 1;
    max-width: 360px;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.step-arrow {
    font-size: 1.5rem;
    color: var(--primary);
}

/* ==================== 适用人群 ==================== */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.audience-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
}

.audience-icon {
    font-size: 3rem;
    margin-bottom: 1.25rem;
}

.audience-card h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.audience-card ul {
    text-align: left;
}

.audience-card li {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    padding: 0.5rem 0;
    padding-left: 1.25rem;
    position: relative;
}

.audience-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
}

/* ==================== 快速链接 ==================== */
.quick-links {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.quick-link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 2rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.2s;
}

.quick-link-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.ql-icon {
    font-size: 2rem;
}

.ql-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.ql-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--bg-card);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-col p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
}

.footer-social a {
    color: var(--primary);
    font-size: 0.9375rem;
}

.footer-social a:hover {
    text-decoration: underline;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    transition: color 0.2s;
}

.footer-col ul li a:hover {
    color: var(--primary);
}

.footer-col ul li {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-content {
        text-align: center;
    }

    .hero-description {
        margin: 0 auto 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        padding: 6rem 0 3rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 1.5rem;
    }

    .steps {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .features-grid,
    .audience-grid,
    .links-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ==================== 页面标题 ==================== */
.page-header {
    padding: 8rem 0 3rem;
    text-align: center;
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* ==================== 关于页面 ==================== */
.about-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.about-block.reverse {
    direction: rtl;
}

.about-block.reverse > * {
    direction: ltr;
}

.about-content h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.about-content ul {
    margin-top: 1rem;
}

.about-content li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.about-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
}

.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    width: 200px;
    height: 200px;
    background: var(--bg-card-hover);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

/* OpenClaw 简介 */
.openclaw-intro {
    margin: 4rem 0;
    padding: 3rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.openclaw-intro h2 {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    text-align: center;
}

.intro-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.intro-card {
    padding: 1.5rem;
    background: var(--bg-dark);
    border-radius: 12px;
    text-align: center;
}

.intro-card h3 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    color: var(--primary);
}

.intro-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* 价值观 */
.values-section {
    margin: 4rem 0;
}

.values-section h2 {
    font-size: 1.75rem;
    margin-bottom: 2rem;
    text-align: center;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.value-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    text-align: center;
}

.value-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.value-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.value-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* 联系方式 */
.contact-section {
    margin: 4rem 0;
    padding: 3rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
    text-align: center;
}

.contact-section h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.contact-section > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}

.contact-icon {
    font-size: 1.25rem;
}

/* ==================== 功能页面 ==================== */
.feature-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 3rem;
    margin-bottom: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.feature-detail.reverse {
    direction: rtl;
}

.feature-detail.reverse > * {
    direction: ltr;
}

.feature-tag {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 100px;
    font-size: 0.8125rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.feature-detail h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.feature-detail p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.feature-list-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.feature-list-item strong {
    color: var(--text-primary);
}

.feature-highlights {
    margin-top: 1rem;
}

.feature-highlights li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.feature-highlights strong {
    color: var(--text-primary);
}

.feature-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.channels-visual {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.channel-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-card-hover);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.security-visual, .model-visual, .mobile-visual, .evolve-visual {
    text-align: center;
}

.shield-icon, .brain-icon, .phone-icon, .evolve-cycle {
    font-size: 5rem;
    margin-bottom: 1rem;
}

.security-text, .mobile-text, .evolve-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.model-badges {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}

.model-badges span {
    padding: 0.375rem 0.75rem;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 100px;
    font-size: 0.8125rem;
    color: var(--primary);
}

.skill-categories {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 1.5rem 0;
}

.skill-cat {
    padding: 1rem;
    background: var(--bg-dark);
    border-radius: 8px;
}

.skill-cat h4 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.skill-cat p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.model-item {
    padding: 1rem;
    background: var(--bg-dark);
    border-radius: 8px;
}

.model-name {
    display: block;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.model-desc {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.access-info {
    margin-top: 1rem;
    color: var(--text-secondary);
}

.access-info code {
    padding: 0.25rem 0.5rem;
    background: var(--bg-dark);
    border-radius: 4px;
    font-family: monospace;
    color: var(--success);
}

.dashboard-visual {
    background: var(--bg-dark);
    border-radius: 12px;
    padding: 1.5rem;
    width: 280px;
}

.dash-header {
    padding: 0.5rem 1rem;
    background: var(--bg-card-hover);
    border-radius: 8px 8px 0 0;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.dash-content {
    padding: 1rem;
}

.dash-stat {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* 对比表格 */
.comparison {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.comparison-table {
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.comparison-table th {
    background: var(--bg-dark);
    font-weight: 600;
}

.comparison-table td {
    color: var(--text-secondary);
}

.comparison-table td:first-child {
    font-weight: 500;
    color: var(--text-primary);
}

/* ==================== 安装页面 ==================== */
.requirements-box {
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
    margin-bottom: 3rem;
}

.requirements-box h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.req-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.req-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.req-icon {
    font-size: 1.5rem;
}

.req-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.req-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* 安装方式 */
.install-methods h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.method-intro {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.method-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.method-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.method-badge {
    padding: 0.25rem 0.75rem;
    background: var(--success);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.method-badge.alternative {
    background: var(--warning);
}

.method-badge.advanced {
    background: var(--accent);
}

.method-header h3 {
    font-size: 1.25rem;
}

.method-content {
    padding: 1.5rem;
}

.method-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.code-block {
    background: var(--bg-dark);
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.code-title {
    padding: 0.5rem 1rem;
    background: var(--bg-card-hover);
    font-size: 0.8125rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.code-block pre {
    padding: 1rem;
    overflow-x: auto;
}

.code-block code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* 新手引导 */
.wizard-section {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.wizard-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.wizard-intro {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.wizard-intro code {
    padding: 0.25rem 0.5rem;
    background: var(--bg-dark);
    border-radius: 4px;
    font-family: monospace;
}

.wizard-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.wizard-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.wizard-num {
    width: 32px;
    height: 32px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.wizard-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.wizard-content p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* 验证安装 */
.verify-section, .channels-config {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.verify-section h2, .channels-config h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.channels-config > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* 渠道 Tab */
.channel-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn:hover {
    border-color: var(--primary);
}

.tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.channel-content .code-block {
    margin: 0;
}

.hidden {
    display: none;
}

/* 常见问题 */
.faq-section {
    margin: 3rem 0;
}

.faq-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.faq-list {
    display: grid;
    gap: 1rem;
}

.faq-item {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.faq-item h4 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.faq-item code {
    padding: 0.125rem 0.375rem;
    background: var(--bg-dark);
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.8125rem;
}

/* 下一步 */
.next-steps {
    margin: 3rem 0;
    text-align: center;
}

.next-steps h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.next-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.next-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.2s;
}

.next-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.next-icon {
    font-size: 2rem;
}

.next-title {
    font-weight: 600;
}

.next-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ==================== Skills 页面 ==================== */
.intro-banner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
    margin-bottom: 3rem;
}

.intro-content h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.highlight-text {
    font-size: 1.125rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.intro-content p {
    color: var(--text-secondary);
}

.skill-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.flow-item {
    padding: 1rem 1.5rem;
    background: var(--bg-dark);
    border-radius: 12px;
    font-weight: 600;
}

.flow-arrow {
    font-size: 1.5rem;
    color: var(--primary);
}

/* 安装指南 */
.install-guide {
    margin: 3rem 0;
}

.install-guide h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.install-steps .code-block {
    margin-bottom: 1rem;
}

.security-note {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 8px;
    margin-top: 1rem;
}

.note-icon {
    font-size: 1.25rem;
}

.security-note strong {
    color: var(--warning);
}

.security-note code {
    padding: 0.125rem 0.375rem;
    background: var(--bg-dark);
    border-radius: 4px;
    font-family: monospace;
}

/* 必装 Skills */
.featured-skills {
    margin: 3rem 0;
}

.featured-skills h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.section-desc {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.2s;
}

.skill-card:hover {
    border-color: var(--primary);
}

.skill-card.featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--bg-card) 100%);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.skill-icon {
    font-size: 2rem;
}

.skill-title {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.skill-title h3 {
    font-size: 1.25rem;
}

.skill-tag {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 100px;
    font-size: 0.6875rem;
    color: var(--primary);
    width: fit-content;
}

.skill-tag.security { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.skill-tag.search { background: rgba(34, 211, 238, 0.15); color: var(--secondary); }
.skill-tag.automation { background: rgba(245, 63, 94, 0.15); color: var(--accent); }
.skill-tag.multimodal { background: rgba(168, 85, 247, 0.15); color: #a855f7; }
.skill-tag.evolution { background: rgba(245, 158, 11, 0.15); color: var(--warning); }

.skill-desc {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.skill-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.skill-features span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.skill-install {
    padding: 0.5rem;
    background: var(--bg-dark);
    border-radius: 6px;
    overflow-x: auto;
}

.skill-install code {
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--success);
}

/* 更多 Skills */
.more-skills {
    margin: 3rem 0;
}

.more-skills h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.skills-table {
    overflow-x: auto;
}

.skills-table table {
    width: 100%;
    border-collapse: collapse;
}

.skills-table th,
.skills-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.skills-table th {
    background: var(--bg-card);
    font-weight: 600;
}

.skills-table td {
    color: var(--text-secondary);
}

.skills-table td:first-child {
    font-weight: 500;
    color: var(--text-primary);
    font-family: monospace;
}

.skills-table code {
    font-size: 0.75rem;
    color: var(--success);
}

/* 效率数据 */
.efficiency-stats {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.efficiency-stats h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-dark);
    border-radius: 12px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.test-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8125rem;
    margin-top: 1.5rem;
}

/* 组合示例 */
.combo-examples {
    margin: 3rem 0;
}

.combo-examples h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.combo-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.combo-card {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.combo-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.combo-card h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.combo-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

.flow-step {
    padding: 0.25rem 0.5rem;
    background: var(--bg-dark);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.combo-flow .flow-arrow {
    color: var(--primary);
    font-size: 1rem;
}

/* 自定义 Skill */
.custom-skill {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.custom-skill h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.custom-skill > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* ==================== 应用场景页面 ==================== */
.use-case-category {
    margin-bottom: 4rem;
}

.use-case-category h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.2s;
}

.case-card:hover {
    border-color: var(--primary);
}

.case-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.case-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.case-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.case-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.case-skills span {
    padding: 0.125rem 0.5rem;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 100px;
    font-size: 0.6875rem;
    color: var(--primary);
}

/* 效率数据 */
.impact-stats {
    margin: 4rem 0;
    padding: 3rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.impact-stats h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.stats-showcase {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.impact-item {
    text-align: center;
}

.impact-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
}

.impact-label {
    font-size: 1rem;
    margin: 0.5rem 0;
}

.impact-desc {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* 案例故事 */
.case-studies {
    margin: 4rem 0;
}

.case-studies h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.stories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.story-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
}

.story-quote {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    position: relative;
}

.story-quote::before {
    content: '"';
    font-size: 3rem;
    color: var(--primary);
    position: absolute;
    top: -1rem;
    left: -0.5rem;
    opacity: 0.5;
}

.story-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    font-size: 2rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info strong {
    font-size: 0.9375rem;
}

.author-info span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* 开始使用 */
.start-using {
    margin: 4rem 0;
    text-align: center;
    padding: 3rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.start-using h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.start-using > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.start-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn-full {
    width: 100%;
}

/* ==================== 社区页面 ==================== */
.community-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
    margin-bottom: 3rem;
}

.intro-content h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.intro-content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.intro-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
}

.comm-stat {
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-desc {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* 加入社区 */
.join-community {
    margin: 3rem 0;
}

.join-community h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.platform-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
}

.platform-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.platform-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.platform-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.platform-btn {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--primary);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.2s;
}

.platform-btn:hover {
    background: var(--primary-dark);
}

/* 社区资源 */
.community-resources {
    margin: 3rem 0;
}

.community-resources h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.resource-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
}

.resource-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.resource-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.resource-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.resource-card a {
    color: var(--primary);
    font-size: 0.875rem;
}

/* 贡献指南 */
.contribute-section {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.contribute-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.contribute-section > p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contribute-types {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
}

.contribute-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-dark);
    border-radius: 12px;
}

.contrib-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contribute-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.contribute-item p {
    color: var(--text-muted);
    font-size: 0.8125rem;
}

/* 行为准则 */
.code-of-conduct {
    margin: 3rem 0;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
}

.code-of-conduct h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.code-of-conduct > p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.conduct-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.conduct-list li {
    padding: 0.75rem 1rem;
    background: var(--bg-dark);
    border-radius: 8px;
    color: var(--text-secondary);
}

/* 活动 */
.events-section {
    margin: 3rem 0;
}

.events-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.events-list {
    display: grid;
    gap: 1rem;
}

.event-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.event-item.upcoming {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.1) 0%, var(--bg-card) 100%);
}

.event-date {
    font-weight: 600;
    color: var(--primary);
    white-space: nowrap;
}

.event-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.event-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ==================== 博客页面 ==================== */
.blog-featured {
    margin-bottom: 3rem;
}

.featured-article {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
}

.featured-article::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
}

.featured-article h2 {
    font-size: 1.5rem;
    margin: 1rem 0;
}

.featured-article p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.article-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 100px;
    font-size: 0.75rem;
    color: var(--primary);
    margin-right: 0.5rem;
}

.article-tag.hot {
    background: rgba(244, 63, 94, 0.15);
    color: var(--accent);
}

.article-date {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.article-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.article-tags span {
    padding: 0.125rem 0.5rem;
    background: var(--bg-dark);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.read-more {
    color: var(--primary);
    font-weight: 500;
}

/* 分类 */
.blog-categories {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.category-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.category-btn:hover {
    border-color: var(--primary);
}

.category-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* 文章列表 */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.2s;
}

.article-card:hover {
    border-color: var(--primary);
}

.article-thumbnail {
    height: 120px;
    background: var(--bg-card-hover);
    display: flex;
    align-items: center;
    justify-content: center;
}

.thumb-icon {
    font-size: 3rem;
}

.article-content {
    padding: 1.5rem;
}

.article-content h3 {
    font-size: 1rem;
    margin: 0.75rem 0;
    line-height: 1.5;
}

.article-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.read-time {
    color: var(--text-muted);
    font-size: 0.8125rem;
}

.article-footer a {
    color: var(--primary);
    font-size: 0.875rem;
}

.load-more {
    text-align: center;
    margin-top: 3rem;
}

/* 订阅 */
.subscribe-section {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.subscribe-box {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.subscribe-box h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.subscribe-box > p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.subscribe-form {
    display: flex;
    gap: 0.5rem;
}

.subscribe-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.subscribe-form input::placeholder {
    color: var(--text-muted);
}

/* ==================== 联系页面 ==================== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2,
.contact-form-wrapper h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.info-cards {
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.info-card {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.info-icon {
    font-size: 1.5rem;
}

.info-content h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.info-content p {
    color: var(--text-primary);
    font-weight: 500;
}

.info-note {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.quick-help {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
}

.quick-help h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
}

.quick-help ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.quick-help li {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.quick-help a {
    color: var(--primary);
}

/* 联系表单 */
.contact-form-wrapper {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.9375rem;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: inherit;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
}

.form-note {
    margin-top: 1rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* 合作 */
.cooperation-section {
    margin-top: 4rem;
}

.cooperation-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.coop-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.coop-card {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-align: center;
}

.coop-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.coop-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.coop-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* 响应式补充 */
@media (max-width: 1024px) {
    .about-block,
    .intro-banner,
    .contact-layout,
    .feature-detail {
        grid-template-columns: 1fr;
    }

    .about-block.reverse {
        direction: ltr;
    }

    .feature-detail.reverse {
        direction: ltr;
    }

    .intro-stats {
        flex-wrap: wrap;
    }

    .req-grid,
    .wizard-steps,
    .intro-grid,
    .values-grid,
    .next-grid,
    .skills-grid,
    .stats-grid,
    .cases-grid,
    .stories-grid,
    .platforms-grid,
    .resources-grid,
    .coop-grid,
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contribute-types {
        grid-template-columns: repeat(3, 1fr);
    }

    .conduct-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }

    .req-grid,
    .wizard-steps,
    .intro-grid,
    .values-grid,
    .next-grid,
    .skills-grid,
    .stats-grid,
    .cases-grid,
    .stories-grid,
    .platforms-grid,
    .resources-grid,
    .coop-grid,
    .articles-grid,
    .contribute-types {
        grid-template-columns: 1fr;
    }

    .subscribe-form {
        flex-direction: column;
    }

    .skill-categories {
        grid-template-columns: 1fr;
    }

    .models-grid {
        grid-template-columns: 1fr;
    }

    .contact-methods {
        flex-direction: column;
        gap: 1rem;
    }

    .start-buttons {
        flex-direction: column;
    }

    .combo-flow {
        flex-direction: column;
        align-items: flex-start;
    }

    .combo-flow .flow-arrow {
        transform: rotate(90deg);
    }

    .stats-showcase {
        grid-template-columns: repeat(2, 1fr);
    }

    .blog-categories {
        justify-content: center;
    }
}